Troubleshooting

Symptom

Cause

Solution

Print too light

• Paper settings may be

• Make sure the printer paper type, paper texture,

 

incorrect.

 

and paper weight settings match the type of

 

• The Toner Darkness setting is

 

paper you are using.

 

too light.

• Select a different Toner Darkness setting from the

 

• You are using paper that does

 

printer driver before sending the job to print.

 

not meet the printer

• Perform a Color Adjust in the Utilities Menu.

 

specifications.

• Load paper from a new package.

 

• The print cartridges are low on

• Avoid textured paper with rough finishes.

 

toner.

• Make sure the paper you load in the trays is not

 

• The print cartridges are

 

damp.

 

defective or have been installed

• Shake the specified toner cartridge to utilize the

 

in more than one printer.

 

remaining toner. For more information, see Print

 

 

 

cartridges.

 

 

• Replace the print cartridges.

 

 

 

Print too dark

• The Toner Darkness setting is

• Select a different Toner Darkness setting from the

 

too dark.

 

printer driver before sending the job to print.

 

• The print cartridges are

• Replace the print cartridges.

 

defective.

 

 

 

 

 

Transparency print

• You are using transparencies

• Use only transparencies recommended by the

quality is poor

that do not meet the printer

 

printer’s manufacturer.

(Print has inappropriate

specifications.

• Make sure the Paper Type setting is set to

• The Paper Type setting for the

 

Transparency.

light or dark spots, toner

 

tray you are using is set to

 

 

is smeared, horizontal or

 

 

something other than

 

 

vertical light bands

 

 

transparency.

 

 

appear, or color does not

 

 

project.)

 

 

 

 

 

 

Toner specks

• The print cartridges are

• Replace the print cartridges.

 

defective.

• Replace the transfer roller.

 

• The transfer roller is worn or

• Replace the image transfer unit.

 

defective.

•

Replace the fuser.

 

• The image transfer unit is worn

•

Call for service.

 

or defective.

 

 

•The fuser is worn or defective.

•Toner is in the paper path.

Toner rubs off the paper

• The Type setting is wrong for

• Change Paper Type to match the paper or

easily when you handle

the type of paper or specialty

specialty media you are using.

the sheets.

media you are using.

• Change Paper Texture from Normal to Smooth or

 

• The Texture setting is wrong for

Rough.

 

the type of paper or specialty

• Change Paper Weight from Plain to CardStock (or

 

media you are using.

other appropriate weight).

 

• The Weight setting is wrong for

• Replace the fuser.

 

the type of paper or specialty

 

 

media you are using.

 

• The fuser is worn or defective.

Gray background

• The Toner Darkness setting is

• Select a different Toner Darkness setting from the

 

too dark.

printer driver before sending the job to print.

• The print cartridges are

• Replace the print cartridges.

defective.

 

ABCDE

 

ABCDE

 

ABCDE

 

Solving print quality problems

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Lexmark C770, C772 manual Cartridges
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C772, C770 specifications

The Lexmark C770 and C772 series of printers are robust color laser printers designed for medium to large workgroups that demand high-quality printing along with impressive speed and efficiency. These models stand out due to their impressive set of features and advanced technologies, catering to a range of business printing needs.

One of the hallmarks of the Lexmark C770 and C772 is their print quality. With a resolution of up to 1200 x 1200 dpi, these printers deliver sharp text and vibrant color graphics, making them ideal for producing professional-looking documents, presentations, and marketing materials. Additionally, the printers utilize Lexmark's unique Unison toner technology, which ensures consistent, high-quality printing throughout the life of the cartridge, reducing the need for frequent replacements and maximizing productivity.

Speed is another significant advantage of the C770 and C772 series. Both models are capable of printing at impressive speeds of up to 35 pages per minute for black and white prints and slightly lower for color documents. This rapid output allows businesses to meet tight deadlines without compromising on quality. Furthermore, the first-page-out time is notably fast, ensuring that users do not waste time waiting for their documents.

Connectivity options are extensive with the C770 and C772. These printers support USB, Ethernet, and optional wireless connections, enabling seamless integration into various network environments. This flexibility allows multiple users and devices to access the printer, facilitating collaboration and streamlining workflows.

Additionally, user-friendly features such as a large, intuitive LCD screen and an easy-to-navigate interface simplify printer management and operation. The printers also support advanced finishing options, including duplex printing, which saves paper and reduces costs, making them environmentally friendly choices for businesses.

Moreover, security features are incorporated to protect sensitive data, with options for secure printing and data encryption. This makes these printers suitable for environments where confidentiality is crucial.

In summary, the Lexmark C770 and C772 series are powerful color laser printers that combine exceptional print quality, impressive speed, versatile connectivity, and advanced features, making them a worthy investment for businesses looking to enhance their printing capabilities.
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